Moon explorer crashes down as planned
Print Edition
NASA’S robotic moon explorer, LADEE, is no more.
Flight controllers confirmed early yesterday that the moon-orbiting spacecraft crashed into the back side of the moon as planned.
Researchers believe LADEE likely vaporized upon contact because of its extreme orbiting speed of 5,800 kilometers per hour, possibly smacking into a mountain or side of a crater. No debris would have been left behind.
“It’s bound to make a dent,” project scientist Rick Elphic predicted on Thursday.
By Thursday evening, the spacecraft had been skimming the lunar surface at an incredibly low altitude of 100 meters. Its orbit had been lowered on purpose last week to ensure a crash by Monday following an extraordinarily successful science mission.
LADEE — short for Lunar Atmosphere and Dust Environment Explorer — was launched in September from Virginia. It completed its primary 100-day science mission last month and was on overtime.
The extension had LADEE flying during this week’s lunar eclipse; its instruments were not designed to endure such prolonged darkness and cold. But the small spacecraft survived — about the size of a vending machine — with just a couple pressure sensors acting up.
LADEE did not have enough fuel to remain in lunar orbit beyond mission’s end and keep collecting science. So from the outset, NASA planned to crash the spacecraft into the back side of the moon, far from the Apollo artifacts left behind during the moonwalking days of 1969 to 1972.
- About Us
- |
- Terms of Use
- |
-
RSS - |
- Privacy Policy
- |
- Contact Us
- |
- Shanghai Call Center: 962288
- |
- Tip-off hotline: 52920043
- 沪ICP证：沪ICP备05050403号-1
- |
- 互联网新闻信息服务许可证：31120180004
- |
- 网络视听许可证：0909346
- |
- 广播电视节目制作许可证：沪字第354号
- |
- 增值电信业务经营许可证：沪B2-20120012
Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.
